Hi, still relatively new here but a couple of questions. I have a Sony receiver (3yrs old) that just turns itself off after a bit. If I leave it off and power it on again after an hour or so it is fine. Does this sound like something I can fix myself or is it time to go get a new one? Also, if I were to get a new receiver, does anyone have any recommendations for something in the 300-400 USD range? Obviously I'm not an audiophile but it must have A/B speaker switching and 5.1 or greater outputs to work with my setup. Thanks!